Added color conversion scripts

scripts/hex2hsl.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+# Prompt user for hex value
+echo -n "Enter hex color code: "
+read hex
+
+# Convert hex to RGB
+r=$((16#${hex:1:2}))
+g=$((16#${hex:3:2}))
+b=$((16#${hex:5:2}))
+
+# Convert RGB to HSL
+r=$((r/255))
+g=$((g/255))
+b=$((b/255))
+
+max=${r}
+min=${r}
+
+if [[ ${g} -gt ${max} ]]; then max=${g}; fi
+if [[ ${b} -gt ${max} ]]; then max=${b}; fi
+if [[ ${g} -lt ${min} ]]; then min=${g}; fi
+if [[ ${b} -lt ${min} ]]; then min=${b}; fi
+
+l=$(((max+min)/2))
+
+if [[ ${max} == ${min} ]]; then
+  h=0
+  s=0
+else
+  d=$((max-min))
+    if [[ $(awk "BEGIN {print (${l} > 0.5)}") -eq 1 ]]; then
+      s=$((d/(2-max-min)))
+    else
+      s=$((d/(max+min)))
+    fi
+  case ${max} in
+    ${r}) h=$(((g-b)/d))
+      if [[ ${h} -lt 0 ]]; then h=$((h+6)); fi
+      ;;
+    ${g}) h=$((2+(b-r)/d))
+      ;;
+    ${b}) h=$((4+(r-g)/d))
+      ;;
+  esac
+  h=$((h*60))
+fi
+
+# Assign alpha value (default is 1.0)
+a=1.0
+
+# Output HSLA values
+echo ${h} ${s} ${l} ${a}

scripts/hsl2hex.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+set -e -o pipefail
+
+# Prompt user for HSLA values
+echo -n "Enter HSLA values: "
+read h s l a
+
+# Convert HSL to RGB
+if [[ ${s} -eq 0 ]]; then
+  r=$((l*255))
+  g=$((l*255))
+  b=$((l*255))
+else
+  if [[ $(echo "${l} < 0.5" | bc -l) -eq 1 ]]; then q=$((l*(1+s))); else q=$((l+s-(l*s))); fi
+  p=$((2*l-q))
+  r=$(printf "%.0f" $(echo "(${p}+(${q}-${p})*${hue_to_rgb(p,q,$(((h+120)%360)))})" | bc -l))
+  g=$(printf "%.0f" $(echo "(${p}+(${q}-${p})*${hue_to_rgb(p,q,${h})})" | bc -l))
+  b=$(printf "%.0f" $(echo "(${p}+(${q}-${p})*${hue_to_rgb(p,q,$(((h-120+360)%360)))})" | bc -l))
+fi
+# Convert RGB to hex
+r=$((r/16))
+g=$((g/16))
+b=$((b/16))
+
+hex="#$(printf "%x" ${r})$(printf "%x" ${g})$(printf "%x" ${b})"
+
+# Output hex color code
+echo ${hex}
+
+# Helper function to convert hue to RGB
+hue_to_rgb() {
+  p=${1}
+  q=${2}
+  t=${3}
+
+  if [[ $(echo "${t} < 0" | bc -l) -eq 1 ]]; then t=$((t+360)); fi
+  if [[ $(echo "${t} > 360" | bc -l) -eq 1 ]]; then t=$((t-360)); fi
+  if [[ $(echo "${t} < 60" | bc -l) -eq 1 ]]; then return $(echo "(${p}+(${q}-${p})*${t}/60)" | bc -l); fi
+  if [[ $(echo "${t} < 180" | bc -l) -eq 1 ]]; then return $(echo "${q}" | bc -l); fi
+  if [[ $(echo "${t} < 240" | bc -l) -eq 1 ]]; then return $(echo "(${p}+(${q}-${p})*(240-${t})/60)" | bc -l); fi
+  return $(echo "${p}" | bc -l)
+}

scripts/rgb2hsl.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+# Prompt user for RGB or RGBA values
+echo -n "Enter RGB or RGBA values: "
+read r g b a
+
+# Convert RGB to HSL
+r=$((r/255))
+g=$((g/255))
+b=$((b/255))
+
+max=${r}
+min=${r}
+
+if [[ ${g} -gt ${max} ]]; then max=${g}; fi
+if [[ ${b} -gt ${max} ]]; then max=${b}; fi
+if [[ ${g} -lt ${min} ]]; then min=${g}; fi
+if [[ ${b} -lt ${min} ]]; then min=${b}; fi
+
+l=$(((max+min)/2))
+
+if [[ ${max} == ${min} ]]; then
+  h=0
+  s=0
+else
+  d=$((max-min))
+  if [[ $(echo "${l} > 0.5" | bc -l) -eq 1 ]]; then
+    s=$((d/(2-max-min)))
+  else
+    s=$((d/(max+min)))
+  fi
+  case ${max} in
+    ${r}) h=$(((g-b)/d))
+      if [[ ${h} -lt 0 ]]; then h=$((h+6)); fi
+      ;;
+    ${g}) h=$((2+(b-r)/d))
+      ;;
+    ${b}) h=$((4+(r-g)/d))
+      ;;
+  esac
+  h=$((h*60))
+fi
+
+# Output HSLA values
+echo ${h} ${s} ${l} ${a}